EPOXY-DIPHENOLIC RADIATION-RESISTANT COMPOUND FOR THE MANUFACTURING OF THE ELECTRON-BEAM GUN INSULATORS Russian patent published in 2018 - IPC C08L63/00 C08L63/02 H01B3/08 H01B3/18 H01B3/40 C09K3/10 

FIELD: chemistry.

SUBSTANCE: invention relates to polymer compositions, which are used in electrical engineering for manufacturing high-voltage insulation, in particular hull input and output isolators of electron beam guns operating under the influence of radiation in a vacuum with the current switching up to 30 A, voltage up to 85 kV, H class of heat resistance. Epoxy-diphenolic compound includes (parts by mass): epoxy-dian resin 100, triethanolamine titanate 5–10, oligomer hydroquinone 2–10, pulverized ground quartz 100–110. Hydroquinone oligomer with the degree of polycondensation of n=0–2 with the number average molecular weight of 350 Da, which is obtained from hydroquinone at 240–250 °C in the presence of contact sulfuric acid with the extraction of 9–11 % by weight, is used.

EFFECT: epoxide-diphenolic radiation-resistant compound for manufacturing the electron-beam gun insulators is proposed.

1 cl, 3 tbl